Verizon bootloader relock - Google Pixel XL Questions & Answers

I've unlocked my verizon xl's bootloader on the october update and I was wondering if it could be re-locked by any means other than fastboot? like an OTA for example or a ROM flash or an official image flash, etc. Do I have to watch what I flash to my phone or am I safe?

Jack Mayerz said:
I've unlocked my verizon xl's bootloader on the october update and I was wondering if it could be re-locked by any means other than fastboot? like an OTA for example or a ROM flash or an official image flash, etc. Do I have to watch what I flash to my phone or am I safe?
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No worries. They can't relock your phone with a software update or upgrade.

jaytv said:
No worries. They can't relock your phone with a software update or upgrade.
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Great. Can I inadvertently lock it with a full factory image flash though?

Jack Mayerz said:
Great. Can I inadvertently lock it with a full factory image flash though?
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Click to collapse
No.

Related

HELP! Re-locked Bootloader...No Recovery...No System....No Boot...NOTHING

SO I made a n00b mistake and accidentally reloacked bootloader trying to flash a fresh system image. I wanted to go back to stock after being rooted and unlocked.
Now i get the red screen of death and it just shuts off the phone. No recovery seems to be installed.
What do I do? Do I throw it in the garbage? Or is there a way to salvage this device?
Bootloader is locked and will not let me unlock again.
Thanks.
jdubya45 said:
SO I made a n00b mistake and accidentally reloacked bootloader trying to flash a fresh system image. I wanted to go back to stock after being rooted and unlocked.
Now i get the red screen of death and it just shuts off the phone. No recovery seems to be installed.
What do I do? Do I throw it in the garbage? Or is there a way to salvage this device?
Bootloader is locked and will not let me unlock again.
Thanks.
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Click to collapse
Can you boot into bootloader mode what so ever?
Yes only into bootloader. Can't unlock again though. Won't let me.
stevew84 said:
Can you boot into bootloader mode what so ever?
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Only can get into bootloader but cannot unlock again. Everything else is gone.
jdubya45 said:
Yes only into bootloader. Can't unlock again though. Won't let me.
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Have you tried to manually do this with ADB with the command prompt?
fastboot flashing unlock
stevew84 said:
Can you boot into bootloader mode what so ever?
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stevew84 said:
Have you tried to manually do this with ADB with the command prompt?
fastboot flashing unlock
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Yes. Fails. Remote fail and not allowed.
jdubya45 said:
Yes. Fails. Remote fail and not allowed.
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I don't have the Pixel, so I'm going off of what I know from the 6P.
Does the Toolkit work for the Pixel? There has to be a way to get it working if you can get into bootloader.
stevew84 said:
I don't have the Pixel, so I'm going off of what I know from the 6P.
Does the Toolkit work for the Pixel? There has to be a way to get it working if you can get into bootloader.
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Click to collapse
I am not sure. I think I need Unlocked bootloader.
Actually i think you just need to reunlock using depixel8. That should unlock your bootloader and allow you to flash new firmware
Did you try using dePixel8 to to unlock your bootloader back? I would try that.
Sent from my Pixel XL using XDA Labs
Marghost said:
Did you try using dePixel8 to to unlock your bootloader back? I would try that.
Sent from my Pixel XL using XDA Labs
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You have to be booted in Android for dePixel8 to work.
Am I missing something? why can't you just flash factory image again from the bootloader and then unlock your bootloader with the depixel8?
Sent from my Pixel XL using Tapatalk
MArtyChubbs said:
Am I missing something? why can't you just flash factory image again from the bootloader and then unlock your bootloader with the depixel8?
Sent from my Pixel XL using Tapatalk
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Click to collapse
He said that he tried to unlock the bootloader again and it won't let him. With a locked bootloader, you can't flash the system images.
Sent from my Pixel XL using XDA-Developers mobile app
Moderator warning,
I have cleaned this thread. XDA does not allow users to discuss fraud on this site.
jdubya45 said:
SO I made a n00b mistake and accidentally reloacked bootloader trying to flash a fresh system image. I wanted to go back to stock after being rooted and unlocked.
Now i get the red screen of death and it just shuts off the phone. No recovery seems to be installed.
What do I do? Do I throw it in the garbage? Or is there a way to salvage this device?
Bootloader is locked and will not let me unlock again.
Thanks.
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Click to collapse
My mind is blown on how you accomplished this. Did you ERASE the partitions and then plan on flashing stock ones yourself? Why not just run the script (flash-all.bat) that would have automatically done the ENTIRE process for you, except re-locking the bootloader?
If all you did was re-lock the bootloader, it should have done a factory reset on the next boot and used the existing system partition. If you erased the system partition and then re-locked the bootloader, you are almost certainly screwed and had better hope Google has some mercy to let you RMA the phone.
Couple options you could try off the top of my head. The pixel has A/B patitions try adb sideloading an update zip to get it to switch to the backup partition that might still be there.
You could also try downloading the Factory images and extracting the system and go into fastboot and type
Code:
fastboot boot system system.img
and see if that works. Then if it boots on the temp image run deadpixel8 or whatever its called and reflash the stock image with the flash-all.bat.
have the same problem on my pixel after accidentally relocking after root before flashing back to stock.
Does anyone have the stock pixel xl recovery.img? I thinking if I boot into recovery "fast boot boot recovery.img" then I can add side load etc the ota from google.
jdubya45 said:
SO I made a n00b mistake and accidentally reloacked bootloader trying to flash a fresh system image. I wanted to go back to stock after being rooted and unlocked.
Now i get the red screen of death and it just shuts off the phone. No recovery seems to be installed.
What do I do? Do I throw it in the garbage? Or is there a way to salvage this device?
Bootloader is locked and will not let me unlock again.
Thanks.
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Click to collapse
Insert BRICK emoji here
Atlantian said:
Insert BRICK emoji here
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Software updates...

If i unlock the bootloader and flash any custom rom and then if i back to the stock rom will i get future updates from sony?
If you relock the boatloads, then sure.
DarkSilentSC said:
If you relock the boatloads, then sure.
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Oh..ok,thanks...

Relock bootloader after ONLY flash Magisk

Hi to all!
my question is the following: if I unlock the bootloader, only start the custom recovery without flash it, flash magisk, and then re-lock the bootloader, i can have some problems?
Yes. It checks for non-stock data and it wipes the device upon relock. You may end up with a brick if you try to relock with non-stock software.
Gafanhotz said:
Yes. It checks for non-stock data and it wipes the device upon relock. You may end up with a brick if you try to relock with non-stock software.
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But I'm not going to change the system, magisk does not change the system, or am I wrong?
CarloHD said:
But I'm not going to change the system, magisk does not change the system, or am I wrong?
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A locked bootloader will not boot a device that has a different signature from the stock one with any partition other than cache or userdata. Since Magisk has to change the boot image it has a different checksum than the stock because only OnePlus can resign an image with their signature.
On another note why do you need the bootloader to be locked? The only difference I can think for would be warranty but if you're that worried it wouldn't be worth it in the first place.
bullet25 said:
A locked bootloader will not boot a device that has a different signature from the stock one with any partition other than cache or userdata. Since Magisk has to change the boot image it has a different checksum than the stock because only OnePlus can resign an image with their signature.
On another note why do you need the bootloader to be locked? The only difference I can think for would be warranty but if you're that worried it wouldn't be worth it in the first place.
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Actually the reason why I would like to lock the bootloader is to avoid the unlocked bootloader warning screen
CarloHD said:
Actually the reason why I would like to lock the bootloader is to avoid the unlocked bootloader warning screen
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Click to collapse
It's an extra 5 seconds. Learn to deal with it
You can sign images yourself:
Re-locking Bootloader w/ Custom OS
Do this wrong and you will have a bad day..., its easier to live with it. On some devices they have managed to change that image, but not eliminate it.
bullet25 said:
A locked bootloader will not boot a device that has a different signature from the stock one with any partition other than cache or userdata. Since Magisk has to change the boot image it has a different checksum than the stock because only OnePlus can resign an image with their signature.
On another note why do you need the bootloader to be locked? The only difference I can think for would be warranty but if you're that worried it wouldn't be worth it in the first place.
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c_86 said:
It's an extra 5 seconds. Learn to deal with it
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It also compromises SECURITY
PHANX0M said:
It also compromises SECURITY
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why would u root then??????

Question correct way to unroot and re lock bootloader?

want to put my p6p back to stock. currently rooted on stock firmware stock kernel etc. what's the best way to get it back to stock? do I need to flash back the stock boot image before I lock the bootloader?
Magisk has an option to unroot then you can lock the bootloader
Either as @spart0n proposed or flash the original factory image (for that I prefer to using the Android Flash Tool, using the fastboot method has so far always failed to work for me).... After that you are back on original stock and can proceed to relock the bootloader using "fastboot flashing lock" (detailed info on the above linked page)
whatsisnametake2 said:
want to put my p6p back to stock. currently rooted on stock firmware stock kernel etc. what's the best way to get it back to stock? do I need to flash back the stock boot image before I lock the bootloader?
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Official Google Android Flash Tool, and then lock the bootloader after that.
Note that you should never lock the bootloader unless you're 100% stock, and flashing the full stock image is the only way of ensuring that, even if you choose to not let Official Google Android Flash Tool wipe your user data, as well.
ok thanks. so if I wasn't going to use the android flash tool, flash the full stock image, then lock bootloader?
whatsisnametake2 said:
ok thanks. so if I wasn't going to use the android flash tool, flash the full stock image, then lock bootloader?
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Yes. I would leave the oem unlock slider at allow unlock for awhile in case it goes sideways. I would wait for the first OTA update before changing that.
TonikJDK said:
Yes. I would leave the oem unlock slider at allow unlock for awhile in case it goes sideways. I would wait for the first OTA update before changing that.
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Great advice. Once it's stable you can flip the OEM switch and a reboot reenables all security features.
TonikJDK said:
Yes. I would leave the oem unlock slider at allow unlock for awhile in case it goes sideways. I would wait for the first OTA update before changing that.
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Click to collapse
you mean in developer options? I hadn't thought of that thanks. so a full factory flash with wipe doesn't set that back to off?
so,
full factory flash with wipe
lock bootloader
boot into phone and turn OEM unlocking off
factory reset from phone settings
I'm returning the phone to google so it needs to be completely stock.
whatsisnametake2 said:
you mean in developer options? I hadn't thought of that thanks. so a full factory flash with wipe doesn't set that back to off?
so,
full factory flash with wipe
lock bootloader
boot into phone and turn OEM unlocking off
factory reset from phone settings
I'm returning the phone to google so it needs to be completely stock.
Click to expand...
Click to collapse
If you are returning it them skip my advice and do your steps.
Don't worry about this too much. Google does not care if you unlocked it.
TonikJDK said:
If you are returning it them skip my advice and do your steps.
Don't worry about this too much. Google does not care if you unlocked it.
Click to expand...
Click to collapse
ok thanks. so if you flash factory image then lock bootloader, the oem unlock will still be set to on when you go into the phone?
whatsisnametake2 said:
ok thanks. so if you flash factory image then lock bootloader, the oem unlock will still be set to on when you go into the phone?
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Click to collapse
Correct
TonikJDK said:
Correct
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Click to collapse
ok cheers

Question a546u1 oem unlock

i did flashy flashy stuff and swapped it to a546u1 from a546u (us carrier unlocked from locked)
should i now have oem unlocking and if i shouldn't on this model, what other model can i flash my phone to gain access to oem unlocking?
beati_kay said:
i did flashy flashy stuff and swapped it to a546u1 from a546u (us carrier unlocked from locked)
should i now have oem unlocking and if i shouldn't on this model, what other model can i flash my phone to gain access to oem unlocking?
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Click to collapse
U.S. models have no access to OEM unlocking even if it's carrier free
ShaDisNX255 said:
U.S. models have no access to OEM unlocking even if it's carrier free
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Click to collapse
do you know if my phone would support firmware for the europe a54 or something?
beati_kay said:
do you know if my phone would support firmware for the europe a54 or something?
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Click to collapse
If you have a carrier locked US model there is nothing you can flash in ODIN to unlock the bootloader, as odin packages dont touch the firmware. Best you can do is hope an exploit gets found or return the phone.
beati_kay said:
i did flashy flashy stuff and swapped it to a546u1 from a546u (us carrier unlocked from locked)
should i now have oem unlocking and if i shouldn't on this model, what other model can i flash my phone to gain access to oem unlocking?
Click to expand...
Click to collapse
Might I ask how you managed to flash a different firmware version? What method did you use to flash the A546U1 firmware?
I ask because from what I understand, the A546U version does not have the option to unlock the bootloader and in order to flash anything at all (including another stock firmware), you must first unlock the bootloader.
h0miemaru said:
to flash anything at all (including another stock firmware), you must first unlock the bootloader.
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Click to collapse
You can flash any stock firmware without unlocking the bootloader as long as it's official firmware
ShaDisNX255 said:
You can flash any stock firmware without unlocking the bootloader as long as it's official firmware
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Click to collapse
And what is the process for doing this?
Flashing another stock firmware, that is?
My objective is to flash an official European version so I can go into dev settings, unlock bootloader, the proceed to flash a custom ROM.
h0miemaru said:
And what is the process for doing this?
Flashing another stock firmware, that is?
My objective is to flash an official European version so I can go into dev settings, unlock bootloader, the proceed to flash a custom ROM.
Click to expand...
Click to collapse
If you're trying to do this on a US variant then it won't work
ShaDisNX255 said:
If you're trying to do this on a US variant then it won't work
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Click to collapse
Do you know the reason behind this?
Because my understanding is that having a locked bootloader is the only thing preventing me from flashing a ROM on my US version (A546U).
What else is preventing me from flashing a stock official firmware on my A656U using the method you're referring to.
h0miemaru said:
Do you know the reason behind this?
Because my understanding is that having a locked bootloader is the only thing preventing me from flashing a ROM on my US version (A546U).
What else is preventing me from flashing a stock official firmware on my A656U using the method you're referring to.
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Click to collapse
Odon simply will not allow you to do this
ShaDisNX255 said:
Odon simply will not allow you to do this
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Click to collapse
Well that's unfortunate. I wonder how the person who made this thread managed to flash the A546U1 firmware on a phone that was originally A546U.
h0miemaru said:
Well that's unfortunate. I wonder how the person who made this thread managed to flash the A546U1 firmware on a phone that was originally A546U.
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Odin does allow that for some reason since they're both U.S. firmware

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